package br.com.marlon.sistema.util;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.hibernate.SessionFactory;

import br.com.marlon.sistema.vendas.HibernateUtil;

public class ConexaoHibernate implements Filter{
	
	private SessionFactory sessionFactory;

	@Override
	public void destroy() {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse,
			FilterChain filterChain) throws IOException, ServletException {
		
		try {
			this.sessionFactory.getCurrentSession().beginTransaction();
			filterChain.doFilter(servletRequest, servletResponse);
			this.sessionFactory.getCurrentSession().getTransaction().commit();
			this.sessionFactory.getCurrentSession().close();
		} catch (Throwable e) {
			try {
				if(this.sessionFactory.getCurrentSession().getTransaction().isActive())
					this.sessionFactory.getCurrentSession().getTransaction().rollback();
			} catch (Exception e2) {
				e2.printStackTrace();
			}
			
			throw new ServletException();
		}
		
		
	}

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
		this.sessionFactory = HibernateUtil.getSession();
		
	}

}
